Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Net (loss) income	$ 6,633,000	$ (183,372,000)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Non-cash compensation expense	14,268,000	16,074,000
Amortization of deferred fees on loans	(26,838,000)	(33,700,000)
Amortization of deferred financing costs and premiums/discounts on debt obligations	18,962,000	21,494,000
Payment-in-kind interest	(8,450,000)	(6,164,000)
Increase in current expected credit loss reserve	95,098,000	387,277,000
Straight-line rental income	1,716,000	0
Gain on extinguishment of debt	0	(2,963,000)
Depreciation and amortization of real estate owned	32,918,000	185,000
Loss from unconsolidated entities	2,889,000	0
Unrealized loss on derivative financial instruments, net	3,024,000	291,000
Realized gain on derivative financial instruments, net	(10,634,000)	(9,155,000)
Changes in assets and liabilities, net
Other assets	23,881,000	20,257,000
Other liabilities	4,282,000	(15,431,000)
Net cash provided by operating activities	157,749,000	194,793,000
Cash flows from investing activities
Principal fundings of loans receivable	(3,440,030,000)	(626,746,000)
Principal collections, sales proceeds, and cost-recovery proceeds from loans receivable	3,408,253,000	1,413,348,000
Origination and other fees received on loans receivable	30,475,000	11,774,000
Payments under derivative financial instruments	(127,982,000)	(77,368,000)
Receipts under derivative financial instruments	94,364,000	55,760,000
Collateral deposited under derivative agreements	(343,500,000)	(63,110,000)
Return of collateral deposited under derivative agreements	261,890,000	150,710,000
Investment in unconsolidated entities	(107,712,000)	0
Capital expenditures on real estate owned	(6,846,000)	0
Net cash (used in) provided by investing activities	(231,088,000)	864,368,000
Cash flows from financing activities
Proceeds from issuance of securitized debt obligations	831,250,000	0
Repayment of loan participations	54,028,000	235,960,000
Payment of deferred financing costs	(28,541,000)	(13,734,000)
Contributions from non-controlling interests	0	1,245,000
Distributions to non-controlling interests	(137,000)	(2,467,000)
Dividends paid on class A common stock	(161,856,000)	(215,068,000)
Repurchases of class A common stock	(31,686,000)	0
Net cash provided by (used in) financing activities	129,200,000	(1,032,778,000)
Net increase in cash and cash equivalents	55,861,000	26,383,000
Cash and cash equivalents at beginning of period	323,483,000	350,014,000
Effects of currency translation on cash and cash equivalents	8,705,000	(2,521,000)
Cash and cash equivalents at end of period	388,049,000	373,876,000
Supplemental disclosure of cash flows information
Payments of interest	(483,544,000)	(667,527,000)
Payments of income taxes	(1,748,000)	(2,020,000)
Supplemental disclosure of non-cash investing and financing activities
Dividends declared, not paid	(80,649,000)	(107,664,000)
Loan principal payments held by servicer, net	91,996,000	0
Transfer of senior loan to real estate owned	34,721,000	60,203,000
Assumption of other assets and liabilities related to real estate owned	10,323,000	0
Secured debt, net
Cash flows from financing activities
Borrowings under long-term debt	2,525,536,000	658,123,000
Repayments and repurchases of long-term debt	(2,072,147,000)	(1,133,669,000)
Securitized debt obligations, net
Cash flows from financing activities
Repayments and repurchases of long-term debt	(169,926,000)	(179,023,000)
Asset-specific debt, net
Cash flows from financing activities
Borrowings under long-term debt	230,699,000	121,757,000
Repayments and repurchases of long-term debt	(936,274,000)	0
Secured term loans, net
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Amortization of deferred financing costs and premiums/discounts on debt obligations	4,068,000	4,565,000
Cash flows from financing activities
Repayments and repurchases of long-term debt	(3,690,000)	(10,998,000)
Senior secured notes, net
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Amortization of deferred financing costs and premiums/discounts on debt obligations	1,349,000	521,000
Cash flows from financing activities
Repayments and repurchases of long-term debt	$ 0	$ (22,984,000)